Chelsea and Tottenham Hotspur go head-to-head this weekend in a mouth-watering top-of-the-table London derby.
Both sides have enjoyed bright starts to the season with just two places and as many points separating them in the Premier League table.
Sunday's clash at Stamford Bridge is finely poised but that's nothing new for London derbies, or at least that's according to research from the Reach Data Unit.
According to the research, which looks at each London club's performance in derbies, it's Tottenham who should be feeling a little more confident heading into Sunday.
That's because they have outperformed Chelsea across their long history when it comes to games against fellow capital clubs.
Though, there's not much in it. Remarkably, just three points separate the two clubs in the all-time table.
Spurs have picked up 1244 points across history, coming in second on the all-time London derby table, behind Arsenal with 1303 points.
Chelsea, meanwhile, are in third three points worse off than their rivals on Sunday, currently on 1241 points.
A win against Jose Mourinho's men on Sunday will take the Blues level on points, but they will remain behind on goal difference with a 32-goal void currently.
West Ham United, Fulham and Charlton Athletic are the next three on the list but the Hammers in fourth are more than 200 points behind Chelsea.
See the full London derby table below
Club// GD // Points
Arsenal // 337 // 1303
Tottenham Hotspur // 214 // 1244
Chelsea // 182 // 1241
West Ham United // -32 // 987
Fulham // -164 // 664
Charlton Athletic // -188 // 609
Queens Park Rangers // 98 // 538
Crystal Palace // -145 // 473
Millwall // -15 // 424
Leyton Orient // -110 // 346
Brentford // -39 // 263
AFC Wimbledon // -16 // 27
So, a bad omen for the Blues but not one that is likely to have any influence with the current Premier League table the only concern for Frank Lampard and his men.
Both teams head into Sunday's game in fine form, Tottenham unbeaten in five while Chelsea are unbeaten in 13 across all competitions.
The Blues have won each of the last two Premier League meetings between the two sides, while Tottenham won on penalties when the two teams met in the Carabao Cup earlier this season.
That win took Spurs to 55 wins against Chelsea across all time, while the Blues have won 72 with the points shared on 40 occasions.
